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CVE-2019-18849

Status Candidate

Overview

In tnef before 1.4.18, an attacker may be able to write to the victim's .ssh/authorized_keys file via an e-mail message with a crafted winmail.dat application/ms-tnef attachment, because of a heap-based buffer over-read involving strdup.

Related Files

Ubuntu Security Notice USN-4524-1
Posted Sep 21, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4524-1 - Paul Dreik discovered that TNEF incorrectly handled filenames. If a user were tricked into opening a specially crafted email attachment, an attacker could possibly use this issue to write arbitrary files to the filesystem or cause TNEF crash, resulting in a denial of service.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2019-18849
SHA-256 | 9dae4bef7f22d332fc118db9cc9179022b8d88ceeaedb2803a8459a640f9408b
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